CAIRO (Reuters) - Egypt's medical syndicate on Saturday slapped a lifetime ban on a surgeon for performing a kidney transplant operation, a practice illegal in the country, syndicate officials said. They said one of the surgeon's patients complained to the syndicate after the operation because he wanted revenge on the doctor who bought the organ for 12,000 pounds ($3,500) after promising him 100,000 pounds. The officials did not say when or where the operation took place but said the man became disgruntled after he found out that his kidney was transplanted into an African millionaire. Human organ transplant operations are illegal in Egypt. Doctors need approval by the medical syndicate, a regulatory body with disciplinary functions, to perform transplants which is rarely granted and usually only when the operation involves relatives.